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Please follow the following Python code to complete this exercise:
"""
PROGRAMMING ASSIGNMENT 07
Filename: 'exercise1.py'
"""
# Place your imports here if any
def build_attraction_dict(filename):
"""
Read from the file for which the filename was given and returns a dictionary
The key / value pairs in the dictionary will be:
• key → attraction name (str type)
• value → Province (str type)
"""
# TODO
def add_attraction(dic):
"""
This function takes a dictionary as a parameter and does not return anything.
The function:
• asks the user to input an attraction name
• asks the user to input a province
• updates the dictionary with a new key / value pair (with a similar format for
task 1)
"""
# TODO
def build_province_attraction_dict(dic):
"""
This function takes a dictionary as a parameter and returns another dictionary.
The input dictionary is constituted of key / value pairs similar to the ones built in task 1.
The returned dictionary should have key / value pair with:
• key → Province (str type)
• value → list of attraction names (list of str type) associated to the Province
"""
# TODO
def most_attractions(dic):
"""
This function takes a dictionary as a parameter and returns a set.
The input dictionary is constituted of key / value pairs similar to the ones built in task 3.
The returned set should contain the Provinces which have at least 3 tourist attractions
(in the input dictionary).
"""
# TODO
def main():
"""
The main() function will
1. calls `build_province_attraction_dict` with filename top_tourist_attractions.txt as
parameter to generate the first dictionary.
2. calls `add_attraction` one time in order to update the dictionary. The user will input
a new (non-existing) attraction name/Province pair.
3. calls `build_province_attraction_dict` in order to generate a second dictionary.
4. calls `most_attractions` in order to generate the set of Provinces with at least 3 attractions.
5. prints the Provinces with at least 3 attractions. Display one Province per line.
See sample examples for the proper format (empty line + Header line).
"""
# TODO
if __name__ == '__main__':
main()
Below is the top_tourist_attractions.txt:
Yunnan,Three Pagodas
Hunan,Zhangjiajie National Forest Park
Yunnan,Shilin Stone Forest
Yunnan,Lijiang Old Town
Hubei,Wudang Mountains
Jiangsu,Zhouzhuang
Shandong,Mount Tai
Yunnan,Tiger Leaping Gorge
Jiangsu,Suzhou Gardens & Canals
Shaanxi,Xi an City Walls
Gansu,Mogao Caves
Guangxi,Longji Terraces
Beijing,Summer Palace
Shanxi,Hanging Monastery
Guangxi,Reed Flute Cave
Shanxi,Yungang Grottoes
Zhejiang,West Lake
Sichuan,Jiuzhai Valley
Henan,Longmen Grottoes
Shanghai,Pudong Skyline
Yunnan,Hani Terraces
Sichuan,Leshan Giant Buddha
Anhui,Yellow Mountain
Guangxi,Li River Cruise
Shaanxi,Terracotta Army
Hongkong,Victoria Harbour
Beijing,Forbidden City
Xizang,Potala Palace
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